REFRIGERATION CYCLE DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/167811

Kind Code:

A1

Abstract:

This refrigeration cycle device (1) is provided with gas leakage sensors (4A, 4B) and a control device (300). When refrigerant leakage is detected by the gas leakage sensors (4A, 4B), the control device (300) executes operation in a first mode in which a four-way valve (100) is set in in a cooling operation state, and a compressor (10) is operated while expansion valves (111A, 111B) are open, and a first shut-off valve (101) is closed. After the operation in the first mode has been executed, the control device executes operation in a second mode in which the four-way valve (100) is set in a heating operation state, and the compressor (10) is operated while the first shut-off valve (101) is closed.

Inventors:

MATSUDA TAKUYA (JP)
WADA MAKOTO (JP)
MOTOMURA YUJI (JP)
ISHIMURA KATSUHIRO (JP)

Application Number:

PCT/JP2017/009896

Publication Date:

September 20, 2018

Filing Date:

March 13, 2017

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B1/00; F25B49/02

Domestic Patent References:

WO2016157519A1

2016-10-06

Foreign References:

JP6081033B1	2017-02-15
JP2013122364A	2013-06-20
JP2007178026A	2007-07-12
JP2015087071A	2015-05-07
US20020162343A1	2002-11-07
JP2016099059A	2016-05-30
JPH05118720A	1993-05-14

Other References: